When it comes to bringing new technology to the elderly, age matters. Luddites are often 45 or older and are constantly sceptical of technological innovation.
I mean age does not really matters, that money to invest and knowledge about it are what that really matters. Although, I understand what you are trying to point out there but which is correct. People above 45 have achieved and got fixated to what makes them make money and not want to try new one.
What that also matter is how the person that is convincing them to buy bitcoin is. If the person makes huge fortune from crypto investment, they can be interested. I mean above 45 people.